CN109446260B - Distributed management method and system for real-time data of mass data points - Google Patents
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Abstract
The invention discloses a distributed management method and a distributed management system for mass data point real-time data, wherein the method is based on the collected equipment where the data points are located, and the distributed management of the mass data points is realized by carrying out distributed management on the collected equipment; the high-efficiency massive data point real-time data service is provided for the outside through the fragment integration data acquisition, the real-time data memory management pool and the data service. The invention effectively accesses massive Internet of things information to the intelligent platform, performs unified configuration and management on data points, provides convenient interfaces and protocols, supports cross-platform access of data, and can perform rapid deployment in a modularized and batched manner; the method can be suitable for devices of different models in various application fields, and high-speed access and convenient management of the information of the Internet of things are realized.
Description
Technical Field
The invention relates to the technical field of Internet of things, in particular to a distributed management method and a distributed management system for mass data point real-time data based on a memory database.
Background
In industries such as industrial control, internet of things and the like, various sensors and intelligent devices are widely used, which need to be connected to devices such as a PLC or a computer and communicate their own measured values or set values, which are defined as data points in a computer system, with the computer.
In large-scale application in wide regions, various sensors and intelligent equipment have various types, and data points have various types and quantities, the quantity of the data points can reach millions to billions, and how to effectively manage, conveniently access and efficiently transmit data in real time is a problem which needs to be solved urgently at present.
Disclosure of Invention
In order to solve the technical problems, the invention provides a distributed management method and a distributed management system for mass data point real-time data, which realize high-speed access, convenient management and easy expansion of the information of the internet of things.
The method adopts the technical scheme that: a distributed management method for real-time data of massive data points is characterized by comprising the following steps:
step 1: constructing at least one configuration database node, wherein each configuration database node is provided with a plurality of relational tables; the relation table is used for storing the equipment node information, the data point information and the data node information and the mapping relation among the equipment nodes, the data points and the data nodes and storing the mapping relation between the query data point set ID and the data points;
step 2: marking the equipment nodes to which all the data points belong, and carrying out unique identification on the equipment nodes through a character string equipment node ID;
marking a data point address by using a 32-bit numerical value in one equipment node, wherein the numerical value is the data point address;
and step 3: marking each data point, and performing unique identification on each data point through the combination of the equipment node ID and the data point address;
and 4, step 4: establishing at least one data node, wherein each data node comprises equipment nodes in a group of distributed clusters and all data points of the equipment nodes; allocating host addresses and access ports to the data nodes, wherein each host address corresponds to at least one data node, and the access ports correspond to the data nodes one to one;
and 5: marking each data node, and carrying out unique identification on each data node through a character string data node ID;
step 6: marking mapping relations among data nodes, equipment nodes and data points and inquiring a data point set;
and 7: the data node sends request information for inquiring managed equipment nodes and all data points of the equipment nodes to the configuration database node;
creating a database query component for accessing a configuration database node, the database query component being configured to query relevant configuration information from the configuration database node;
and 8: the configuration database node searches the relation table according to the request information and then feeds back corresponding equipment nodes and data point information;
and step 9: according to the equipment node information and the data point information which are inquired by the configuration database node, the data node establishes a real-time data management pool to carry out real-time data management on the inquired data point, and is connected with corresponding equipment nodes through the inquired equipment node information to carry out information transmission of corresponding data points with the equipment nodes;
the real-time data management pool carries out automatic fragment management on all data points of the data nodes according to the upper and lower limits of fragment data points, wherein the automatic fragment management comprises the creation of new fragments, the combination of small fragments and the real-time data updating and access of the data points managed in a fragment mode;
step 10: sending request information for inquiring data points to the configuration database node;
creating a database query component for accessing a configuration database node and a real-time data access component for accessing a real-time data point unified interface, wherein the database query component firstly acquires a queried data point from the configuration information node and a host address and an access port number of the data node where the data point is located, and then the real-time data access component is connected with the queried data node for reading and writing data point information;
step 11: the configuration database node searches the relation table according to the request information and then feeds back the corresponding data points and the host addresses and the access ports of the data nodes where the data points are located;
step 12: and connecting the corresponding data nodes according to the host addresses and the access ports of the data nodes inquired by the configuration database nodes, and completing information transmission of the corresponding data points.
The technical scheme adopted by the system of the invention is as follows: a distributed management system for real-time data of massive data points is characterized in that: the system comprises at least one data platform server, a configuration data server, a configuration management tool and a client;
the data platform server is used for constructing at least one data node, and each data node comprises a group of equipment nodes in a distributed cluster and all data points of the equipment nodes; the data platform server is also used for managing data points in a slicing mode, wherein each slicing mode manages a plurality of data points in data nodes, and slicing addition and combination can be carried out according to actual conditions; the data node allocation method comprises the steps that host addresses and access ports are allocated to data nodes, wherein each host address corresponds to at least one data node, and the access ports correspond to the data nodes one to one; the data node is also used for data interaction with the equipment node, wherein the data node can automatically load the managed equipment node driver to perform data interaction with the equipment node;
the configuration data server is used for constructing a configuration database node, the configuration database node is provided with a plurality of relation tables, and the relation tables are used for storing equipment node information, data point information, data node information, mapping relations among the equipment nodes, data points and data nodes and query data point set information;
the configuration management tool is used for marking each data node and each equipment node, wherein each data node and each equipment node are uniquely identified through a character string ID; the device comprises a data point identification module, a data point identification module and a data processing module, wherein the data point identification module is used for marking each data point, and each data point is uniquely identified through the combination of a device node ID and a data point address; the system is also used for writing relation table information into the configuration database nodes, wherein the information comprises equipment node information, data point information, data node information and mapping relation information among the equipment nodes, the data points and the data nodes; the data node is also used for writing query data point set information into the configuration data node;
the client is used for sending request information for inquiring data points to the configuration database node, wherein the request information comprises an ID of an inquiring data point set; and the data node is also used for connecting the corresponding data node according to the data point information inquired by the configuration database node and the host address and the access port of the data node to complete the information transmission of the corresponding data point.
The invention effectively accesses massive Internet of things information to the intelligent platform, performs unified configuration and management on data points, provides convenient interfaces and protocols, supports cross-platform access of data, and can perform rapid deployment in a modularized and batched manner; the method can be suitable for devices of different models in various application fields, and high-speed access and convenient management of the information of the Internet of things are realized.
Drawings
FIG. 1 is a schematic flow chart of a method according to an embodiment of the present invention;
FIG. 2 is a diagram of a data node-device node-data point address architecture in an embodiment of the present invention;
FIG. 3 is a flow chart of data access in a method according to an embodiment of the invention;
fig. 4 is a schematic structural diagram of a system according to an embodiment of the present invention.
Detailed Description
In order to facilitate the understanding and implementation of the present invention for those of ordinary skill in the art, the present invention is further described in detail with reference to the accompanying drawings and examples, it is to be understood that the embodiments described herein are merely illustrative and explanatory of the present invention and are not restrictive thereof.
As shown in fig. 1, the present invention provides a distributed management method for massive data points real-time data based on a memory database, which comprises the following steps:
step 1: constructing at least one configuration database node db, wherein each configuration database node db is provided with a plurality of relational table tables, and the relational table tables are used for storing equipment node dev information, data point information, data node DataPlatform information and mapping relations among the equipment node dev, the data points and the data node DataPlatform; and also for storing a query data point set ID uniquely identified by an algorithmically generated 32-byte string and a mapping of data points.
Step 2: and marking the device nodes dev to which all data points belong, and uniquely identifying the device nodes by using a 32-byte character string device ID generated by an algorithm, so that at least one device node can be marked by an actually existing device.
In this embodiment, in a device node dev, a 32-bit value is used to mark a data point address, and the value is the data point address. Each data point belongs to a designated device node dev.
And step 3: data points are labeled and uniquely identified by a combination of device node ID and data point address.
And 4, step 4: and establishing at least one data node DataPlatform, wherein each data node DataPlatform comprises a group of equipment nodes dev in a distributed cluster, and allocating a host address and an access port for each data node DataPlatform, wherein each host address corresponds to at least one data node DataPlatform, and the access ports correspond to the data nodes DataPlatforms one to one.
As shown in fig. 2 and 3, the data node DataPlatform forms establishes a connection with the device node dev to communicate with the managed device node dev. The data node DataPlatform provides the collection, storage and access services of real-time data point address, value and other information, and the corresponding data information and data read-write state can be inquired through communication with the DataPlatform, and the data point addresses of a plurality of device nodes dev in one data node DataPlatform can coincide.
As shown in fig. 2 and 3, a user communicates with the configuration database node 2 through a client, accesses an address of a data node to be queried, mapping relationship information of a port, and data point information, and then finds a corresponding data node DataPlatform2 to communicate, and accesses to obtain a desired data point, where information of each data point at least includes a real-time value of the data point and state information of the data point.
And 5: the data nodes DataPlatform are marked, and the data nodes DataPlatform are uniquely identified by one 32-byte character string data node ID generated by an algorithm.
Step 6: the label data node DataPlatform, the device node dev, the mapping relationship between data points, and the query data point set.
And 7: the data node DataPlatform sends a request message for querying the managed device node dev and the data point to the configuration database node db, where the request message includes an ID of the data node DataPlatform.
And 8: and the configuration database node db searches the table of the relation according to the request information and then feeds back the dev and the data point information of the corresponding equipment node.
And step 9: according to the device node dev information and the data point information which are inquired by the configuration database node db, the data node DataPlatform establishes a real-time data management pool RTDBMinPool to perform real-time data management on the inquired data points, and connects the corresponding device nodes dev through the inquired device node dev information to perform information transmission of corresponding data points with the device nodes dev.
Step 10: and sending request information for inquiring the data points to the configuration database node db, wherein the request information comprises the ID of the inquiry data point set.
In this embodiment, a database query component DBQuery is constructed, and a data point host and corresponding port information are queried by calling the database query component DBQuery to send request information for querying a data point.
Step 11: and the database node db is configured to search the relational table according to the request information, and then feed back the corresponding data point and the host address and the access port of the data node DataPlatform in which the data point is located.
Step 12: and connecting the corresponding data node DataPlatform according to the host address and the access port of the data node DataPlatform inquired by the configuration database node db to complete information transmission of the corresponding data point.
In this embodiment, a real-time data access component RTDataAccess for accessing a real-time data point unified interface is created, and after receiving a host address and an access port of a data node DataPlatform that is fed back, the real-time data access component RTDataAccess is invoked to read and write information in a data point to be accessed.
Specifically, a unified interface for accessing real-time data points is provided for a client by calling a real-time data access component RTDataAccess, so that real-time data access is realized among application programs such as a human-computer interface, historical data storage and data intelligent analysis.
As shown in fig. 2 and 3, a specific process for accessing a certain real-time data under a three-layer distributed management architecture of "data node-device node-real-time data" is as follows:
(1) the user selects the data to be queried, such as "21: 1,21: 100,25:2,25: 190", by configuring the management tool, generating a query set of real-time data points ID, such as "12121212121212121212121212121212".
(2) The client accesses the "configuration database node" according to the query real-time data point set ID described above.
(3) The data points 21:1,21: 100,25:2 and 25:190 in the real-time data point set, the device node dev where the data points are located, the data node DataPlatform host IP address and port information where the device node dev is located are inquired from the configuration database node, the corresponding data node 2 is accessed in a connecting mode, the connecting IP address is 192.168.1.91, and the port number is 8888.
(4) Communicates with the data node 2(DataPlatform2) and reads and writes data.
As shown in fig. 4, the present invention further provides a distributed management system for massive data points real-time data based on a memory database, which includes at least one configuration management tool, a data platform server, a configuration data server, and a client.
And the configuration management tool is used for managing the equipment nodes dev, the data nodes DataPlatforms and the data points, wherein each data node DataPlatform comprises the equipment nodes dev of a group of distributed clusters, and each equipment node comprises the data points in the group of distributed clusters. And is also used for managing the data node DataPlatform, the device node dev, the mapping relation between the data points and the mapping relation between the query data point set ID and the data points. Wherein, a 32-bit byte character string ID generated by an algorithm is used for unique identification among equipment nodes dev, data nodes DataPlatform and query data point set ID; data points are uniquely identified by a combination of device ID and data point address.
The data platform server is used for constructing at least one data node DataPlatform and is also used for distributing host addresses and access ports for the data nodes DataPlatforms, wherein each host address corresponds to at least one data node DataPlatform, and the access ports correspond to the data nodes DataPlatforms one to one.
The configuration data server is configured to construct a configuration database node db and to assign host addresses and access ports to each configuration database node db, wherein each host address corresponds to at most one configuration database node db.
The client is used for sending request information for inquiring data points to the configuration database node db, and the request information comprises an ID of an inquiry data point set; and the data node database node db is also used for connecting the corresponding data node DataPlatform according to the host address, the access port and the data point of the data node DataPlatform form inquired by the configuration database node db, and completing information transmission between the data node database node db and the corresponding data point.
Specifically, the device node dev, the data node DataPlatform, the data point and the query data point set are constructed according to the user requirements through a configuration management tool, and the information is stored in the configuration database node db. The data node acquires the configured equipment node dev and the data point information configured by the equipment node dev from the configuration database node db, communicates with the field equipment node dev, manages the data point real-time data through the real-time data management pool RTDBMinPol in the memory of the data node, and provides information exchange service for other applications such as a human-machine interface, a data storage server and the like. Through the subordination relationship between the equipment node dev and the data point and the subordination relationship between the equipment node dev and the data node DataPlatform, a user is ensured to accurately access the designated massive Internet of things distributed data points through a client; by adopting a three-layer management architecture of data node-equipment node-real-time data, aiming at any client connected to a distributed network, the real-time data is accessed by using a mode of equipment ID-data point address, so that the distributed management of the real-time data is realized.
In this embodiment: distributed management, that is, a group of computers are connected with each other through a network to form a distributed real-time data management network, then a large amount of data to be processed is grouped according to equipment, and is delivered to the computer groups in the dispersion for processing at the same time.
The client is also used for constructing a database query component DBquery, and the client sends request information for querying data points to the configuration data server by calling the database query component DBquery; and the database query component DBQuery is called to provide information functions such as a host computer and a port for querying data points for application programs such as a human-computer interface and historical data storage. The client is also used for creating a real-time data access component RTDataAccess comprising a unified interface for accessing real-time data points, and after receiving the host address, the access port and the data points of the data nodes fed back by the configuration data server, the client calls the real-time data access component RTDataAccess to read and write information in the data points, namely, the real-time data access component RTDataAccess is called to realize the access of real-time data for application programs such as a human-machine interface and a data storage server.
As shown in fig. 3 and 4, a user communicates with a configuration data server through a client, accesses a data point to be queried and address and port information of a data platform server associated with the data point, and then finds a corresponding data platform server to communicate, and accesses to obtain the required data point.
The invention is applied to big data application based on the information of the Internet of things, such as urban underground comprehensive pipe galleries, smart cities, rail transit, intelligent production and the like, and can dynamically change and expand without stopping according to the requirements in the operation process.
The equipment driving assembly supports the drives of Modbus, Siemens, OmronFins, SNMP, OPC and the like, and seamless expansion can be carried out in the later period according to the field requirements, so that the equipment driving assembly can adapt to equipment of different models on various fields, and the quick access of the information of the Internet of things is realized.
It should be understood that parts of the specification not set forth in detail are well within the prior art.
It should be understood that the above description of the preferred embodiments is given for clarity and not for any purpose of limitation, and that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A distributed management method of mass data point real-time data adopts a distributed management system of the mass data point real-time data;
the method is characterized in that: the system comprises at least one data platform server, a configuration data server, a configuration management tool and a client;
the data platform server is used for constructing at least one data node, and each data node comprises a group of equipment nodes in a distributed cluster and all data points of the equipment nodes; the data platform server is also used for managing data points in a slicing mode, wherein each slicing mode manages a plurality of data points in data nodes, and slicing addition and combination can be carried out according to actual conditions; the data node allocation method comprises the steps that host addresses and access ports are allocated to data nodes, wherein each host address corresponds to at least one data node, and the access ports correspond to the data nodes one to one; the data node is also used for data interaction with the equipment node, wherein the data node can automatically load the managed equipment node driver to perform data interaction with the equipment node;
the configuration data server is used for constructing a configuration database node, the configuration database node is provided with a plurality of relation tables, and the relation tables are used for storing equipment node information, data point information, data node information, mapping relations among the equipment nodes, data points and data nodes and query data point set information;
the configuration management tool is used for marking each data node and each equipment node, wherein each data node and each equipment node are uniquely identified through a character string ID; the device comprises a data point identification module, a data point identification module and a data processing module, wherein the data point identification module is used for marking each data point, and each data point is uniquely identified through the combination of a device node ID and a data point address; the system is also used for writing relation table information into the configuration database nodes, wherein the information comprises equipment node information, data point information, data node information and mapping relation information among the equipment nodes, the data points and the data nodes; the data node is also used for writing query data point set information into the configuration data node;
the client is used for sending request information for inquiring data points to the configuration database node, wherein the request information comprises an ID of an inquiring data point set; the data node is also used for connecting the corresponding data node according to the data point information inquired by the configuration database node and the host address and the access port of the data node to complete information transmission of the corresponding data point;
the method comprises the following steps:
step 1: constructing at least one configuration database node, wherein each configuration database node is provided with a plurality of relational tables; the relation table is used for storing the equipment node information, the data point information and the data node information and the mapping relation among the equipment nodes, the data points and the data nodes and storing the mapping relation between the query data point set ID and the data points;
step 2: marking the equipment nodes to which all the data points belong, and carrying out unique identification on the equipment nodes through a character string equipment node ID;
and step 3: marking each data point, and performing unique identification on each data point through the combination of the equipment node ID and the data point address;
and 4, step 4: establishing at least one data node, wherein each data node comprises equipment nodes in a group of distributed clusters and all data points of the equipment nodes; allocating host addresses and access ports to the data nodes, wherein each host address corresponds to at least one data node, and the access ports correspond to the data nodes one to one;
and 5: marking each data node, and carrying out unique identification on each data node through a character string data node ID;
step 6: marking mapping relations among data nodes, equipment nodes and data points and inquiring a data point set;
and 7: the data node sends request information for inquiring managed equipment nodes and all data points of the equipment nodes to the configuration database node;
and 8: the configuration database node searches the relation table according to the request information and then feeds back corresponding equipment nodes and data point information;
and step 9: according to the equipment node information and the data point information which are inquired by the configuration database node, the data node establishes a real-time data management pool to carry out real-time data management on the inquired data point, connects the corresponding equipment node through the inquired equipment node information, acquires the real-time data of the equipment node according to the dynamically loaded equipment drive, and updates the real-time data of the data point in the data management pool; and issuing a write data instruction to the equipment node; the data node dynamically loads the mechanisms to provide real-time data service for the outside according to the configured external real-time data service mechanisms;
the real-time data management pool performs automatic fragment management on all data points of the data nodes according to upper and lower limits of fragment data points, wherein the automatic fragment management comprises the steps of creating new fragments, merging small fragments, and managing real-time data updating and access of the data points through fragment management;
step 10: sending request information for inquiring data points to the configuration database node;
step 11: the configuration database node searches the relation table according to the request information and then feeds back the corresponding data points and the host addresses and the access ports of the data nodes where the data points are located;
step 12: and actively connecting the corresponding data nodes according to the host addresses and the access ports of the data nodes inquired by the configuration database nodes, completing data subscription of the corresponding data points, acquiring actively reported real-time data and issuing a data writing command.
2. The distributed management method for the real-time mass data points according to claim 1, characterized in that: in step 2, a 32-bit numerical value is used to mark the data point address in one of the device nodes, and the numerical value is the data point address.
3. The distributed management method for the real-time mass data points according to claim 1, characterized in that: in step 7, a database query component is created for accessing the configuration database node, where the database query component is used to query the relevant configuration information from the configuration database node.
4. The distributed management method for the real-time mass data points according to claim 1, characterized in that: in step 12, a database query component for accessing configuration database nodes and a real-time data access component for accessing a real-time data point unified interface are created, the database query component first obtains queried data points and host addresses and access port number information of the data nodes where the data points are located from the configuration information nodes, and the real-time data access component actively connects the queried data nodes to subscribe the data points and read and write the data point information.
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| CN105376093A (en) * | 2015-11-19 | 2016-03-02 | 中冶南方（武汉）自动化有限公司 | Distributed management method and system for mass data points |
| US10534765B2 (en) * | 2017-04-07 | 2020-01-14 | Micro Focus Llc | Assigning segments of a shared database storage to nodes |
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| CN102360357A (en) * | 2011-09-29 | 2012-02-22 | 南京国电南自轨道交通工程有限公司 | Data synchronization component of network relation database nodes of SCADA (Supervisory Control and Data Acquisition) system |
| CN105376093A (en) * | 2015-11-19 | 2016-03-02 | 中冶南方（武汉）自动化有限公司 | Distributed management method and system for mass data points |
| US10534765B2 (en) * | 2017-04-07 | 2020-01-14 | Micro Focus Llc | Assigning segments of a shared database storage to nodes |
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